<?php
namespace com;
class SMTP    
{    
    /* Public Variables */    
    public $smtp_port;    
    public $time_out;    
    public $host_name;    
    public $log_file;    
    public $relay_host;    
    public $debug;    
    public $auth;    
    public $user;    
    public $pass;    
    
    /* Private Variables */    
    private $sock;    
    
    /* Constractor */    
    function SMTP($relay_host = "", $smtp_port = 25, $auth = false, $user, $pass)    
    {    
        $this->debug = FALSE;    
        $this->smtp_port = $smtp_port;    
        $this->relay_host = $relay_host;    
        $this->time_out = 30; //is used in fsockopen()     
        #     
        $this->auth = $auth;//auth     
        $this->user = $user;    
        $this->pass = $pass;    
        #     
        $this->host_name = "localhost"; //is used in HELO command     
        $this->log_file = "";    
    
        $this->sock = FALSE;    
    }    
    
    /* Main Function */    
    function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")    
    {    
        $mail_from = $this->get_address($this->strip_comment($from));    
        $body = preg_replace("/(^|(\r\n))(\\.)/", "\\1.\\3", $body);    
        $header = "MIME-Version:1.0\r\n";    
        if ($mailtype == "HTML") {    
            $header .= "Content-Type:text/html\r\n";    
        }    
        $header .= "To: " . $to . "\r\n";    
        if ($cc != "") {    
            $header .= "Cc: " . $cc . "\r\n";    
        }    
        $header .= "From: $from<" . $from . ">\r\n";    
        $header .= "Subject: " . $subject . "\r\n";    
        $header .= $additional_headers;    
        $header .= "Date: " . date("r") . "\r\n";    
        $header .= "X-Mailer:By Redhat (PHP/" . phpversion() . ")\r\n";    
        list($msec, $sec) = explode(" ", microtime());    
        $header .= "Message-ID: <" . date("YmdHis", $sec) . "." . ($msec * 1000000) . "." . $mail_from . ">\r\n";    
        $TO = explode(",", $this->strip_comment($to));    
    
        if ($cc != "") {    
            $TO = array_merge($TO, explode(",", $this->strip_comment($cc)));    
        }    
    
        if ($bcc != "") {    
            $TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));    
        }    
    
        $sent = TRUE;    
        foreach ($TO as $rcpt_to) {   
            $rcpt_to = $this->get_address($rcpt_to);    
            if (!$this->smtp_sockopen($rcpt_to)) {    
                $this->log_write("Error: Cannot send email to " . $rcpt_to . "\n");    
                $sent = FALSE;    
                continue;    
            }    
            if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {    
                $this->log_write("E-mail has been sent to <" . $rcpt_to . ">\n");    
            } else {    
                $this->log_write("Error: Cannot send email to <" . $rcpt_to . ">\n");    
                $sent = FALSE;    
            }    
            fclose($this->sock);    
            $this->log_write("Disconnected from remote host\n");  
        }    
        //echo "<br>";    
        //echo $header;    
        return $sent;    
    }    
    
    /* Private Functions */    
    
    function smtp_send($helo, $from, $to, $header, $body = "")    
    {    
        if (!$this->smtp_putcmd("HELO", $helo)) {    
            return $this->smtp_error("sending HELO command");    
        }    
        #auth     
        if ($this->auth) {    
            if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {    
                return $this->smtp_error("sending HELO command");    
            }    
            if (!$this->smtp_putcmd("", base64_encode($this->pass))) {    
                return $this->smtp_error("sending HELO command");    
            }    
        }    
        #     
        if (!$this->smtp_putcmd("MAIL", "FROM:<" . $from . ">")) {    
            return $this->smtp_error("sending MAIL FROM command");    
        }    
    
        if (!$this->smtp_putcmd("RCPT", "TO:<" . $to . ">")) {    
            return $this->smtp_error("sending RCPT TO command");    
        }    
    
        if (!$this->smtp_putcmd("DATA")) {    
            return $this->smtp_error("sending DATA command");    
        }    
    
        if (!$this->smtp_message($header, $body)) {    
            return $this->smtp_error("sending message");    
        }    
    
        if (!$this->smtp_eom()) {    
            return $this->smtp_error("sending <CR><LF>.<CR><LF> [EOM]");    
        }    
    
        if (!$this->smtp_putcmd("QUIT")) {    
            return $this->smtp_error("sending QUIT command");    
        }    
    
        return TRUE;    
    }    
    
    function smtp_sockopen($address)    
    {    
        if ($this->relay_host == "") {    
            return $this->smtp_sockopen_mx($address);    
        } else {    
            return $this->smtp_sockopen_relay();    
        }    
    }    
    
    function smtp_sockopen_relay()    
    {    
        $this->log_write("Trying to " . $this->relay_host . ":" . $this->smtp_port . "\n");    
        $this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);    
        if (!($this->sock && $this->smtp_ok())) {    
            $this->log_write("Error: Cannot connenct to relay host " . $this->relay_host . "\n");    
            $this->log_write("Error: " . $errstr . " (" . $errno . ")\n");    
            return FALSE;    
        }    
        $this->log_write("Connected to relay host " . $this->relay_host . "\n");    
        return TRUE;    
    }    
    
    function smtp_sockopen_mx($address)    
    {    
        $domain = preg_replace("/^.+@([^@]+)$/", "\\1", $address);    
        if (!@getmxrr($domain, $MXHOSTS)) {    
            $this->log_write("Error: Cannot resolve MX \"" . $domain . "\"\n");    
            return FALSE;    
        }    
        foreach ($MXHOSTS as $host) {    
            $this->log_write("Trying to " . $host . ":" . $this->smtp_port . "\n");    
            $this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);    
            if (!($this->sock && $this->smtp_ok())) {    
                $this->log_write("Warning: Cannot connect to mx host " . $host . "\n");    
                $this->log_write("Error: " . $errstr . " (" . $errno . ")\n");    
                continue;    
            }    
            $this->log_write("Connected to mx host " . $host . "\n");    
            return TRUE;    
        }    
        $this->log_write("Error: Cannot connect to any mx hosts (" . implode(", ", $MXHOSTS) . ")\n");    
        return FALSE;    
    }    
    
    function smtp_message($header, $body)    
    {    
        fputs($this->sock, $header . "\r\n" . $body);    
        $this->smtp_debug("> " . str_replace("\r\n", "\n" . "> ", $header . "\n> " . $body . "\n> "));    
    
        return TRUE;    
    }    
    
    function smtp_eom()    
    {    
        fputs($this->sock, "\r\n.\r\n");    
        $this->smtp_debug(". [EOM]\n");    
    
        return $this->smtp_ok();    
    }    
    
    function smtp_ok()    
    {    
        $response = str_replace("\r\n", "", fgets($this->sock, 512));    
        $this->smtp_debug($response . "\n");    
    
        if (!preg_match("/^[23]/", $response)) {    
            fputs($this->sock, "QUIT\r\n");    
            fgets($this->sock, 512);    
            $this->log_write("Error: Remote host returned \"" . $response . "\"\n");    
            return FALSE;    
        }    
        return TRUE;    
    }    
    
    function smtp_putcmd($cmd, $arg = "")    
    {    
        if ($arg != "") {    
            if ($cmd == "") $cmd = $arg;    
            else $cmd = $cmd . " " . $arg;    
        }    
    
        fputs($this->sock, $cmd . "\r\n");    
        $this->smtp_debug("> " . $cmd . "\n");    
    
        return $this->smtp_ok();    
    }    
    
    function smtp_error($string)    
    {    
        $this->log_write("Error: Error occurred while " . $string . ".\n");    
        return FALSE;    
    }    
    
    function log_write($message)    
    {    
        $this->smtp_debug($message);    
    
        if ($this->log_file == "") {    
            return TRUE;    
        }    
    
        $message = date("M d H:i:s ") . get_current_user() . "[" . getmypid() . "]: " . $message;    
        if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a"))) {    
            $this->smtp_debug("Warning: Cannot open log file \"" . $this->log_file . "\"\n");    
            return FALSE;    
        }    
        flock($fp, LOCK_EX);    
        fputs($fp, $message);    
        fclose($fp);    
    
        return TRUE;    
    }    
    
    function strip_comment($address)    
    {    
        $comment = "/\\([^()]*\\)/";    
        while (preg_match($comment, $address)) {    
            $address = preg_replace($comment, "", $address);    
        }    
    
        return $address;    
    }    
    
    function get_address($address)    
    {    
        $address = preg_replace("/([ \t\r\n])+/", "", $address);    
        $address = preg_replace("/^.*<(.+)>.*$/", "\\1", $address);    
    
        return $address;    
    }    
    
    function smtp_debug($message)    
    {    
        if ($this->debug) {    
            echo $message . "<br>";    
        }    
    }    
    
    function get_attach_type($image_tag)    
    { //    
    
        $filedata = array();    
    
        $img_file_con = fopen($image_tag, "r");    
        unset($image_data);    
        while ($tem_buffer = AddSlashes(fread($img_file_con, filesize($image_tag))))    
            $image_data = $tem_buffer;    
        fclose($img_file_con);    
    
        $filedata['context'] = $image_data;    
        $filedata['filename'] = basename($image_tag);    
        $extension = substr($image_tag, strrpos($image_tag, "."), strlen($image_tag) - strrpos($image_tag, "."));    
        switch ($extension) {    
            case ".gif":    
                $filedata['type'] = "image/gif";    
                break;    
            case ".gz":    
                $filedata['type'] = "application/x-gzip";    
                break;    
            case ".htm":    
                $filedata['type'] = "text/html";    
                break;    
            case ".html":    
                $filedata['type'] = "text/html";    
                break;    
            case ".jpg":    
                $filedata['type'] = "image/jpeg";    
                break;    
            case ".tar":    
                $filedata['type'] = "application/x-tar";    
                break;    
            case ".txt":    
                $filedata['type'] = "text/plain";    
                break;    
            case ".zip":    
                $filedata['type'] = "application/zip";    
                break;    
            default:    
                $filedata['type'] = "application/octet-stream";    
                break;    
        }    
        return $filedata;    
    }    
    
}